Luis Eduardo Leguizamon Castellanos | Servicio Nacional de Aprendizaje SENA (original) (raw)
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Papers by Luis Eduardo Leguizamon Castellanos
Scientia et technica, 2017
En el presente trabajo se propone controlar la concentración de oxigeno disuelto (DO) en el bio... more En el presente trabajo se propone controlar la concentración de oxigeno disuelto (DO) en el bioreactor de la planta piloto de aguas residuales de la Universidad de Ibagué (PTAR), La estrategia de control que se pretende utilizar es el control predictivo basado en modelos (MPC). Para lograrlo primero se realiza la estimación de la función de transferencia de oxigeno (KLa), luego se determina el modelo y la técnica de linealizacion y finalmente se diseña el controlador. Los resultados son simulados en Matlab y ejecutados en el sistema de control y supervisión de la planta (Labview).
TECCIENCIA, 2019
This article proposes a decision-making algorithm based on the "fuzzy logic" as an optimization t... more This article proposes a decision-making algorithm based on the "fuzzy logic" as an optimization technique, which allows to find a good solution to the problem of determining the priority (sequencing) of service or manufacture of jobs in the programming of intermittent production systems, Job Shop. The combinatorial nature and complexity of the problem motivates the exploration of other alternatives solutions to the traditionally used. Initially, the fuzzy logic controller structure (number of input variables, rules and output) is determined in accordance with the objective functions to be optimized. Triangular membership functions are selected for the batch size, the delivery date, the processing time, the number of tools required in each operation, and the priority of the processing the jobs. The fuzzy rules base is defined, and the controller model is formulated (fuzzification, evaluation and defuzzification). The algorithm is developed in Matlab's ®Simulink ®Fuzzy logic toolbox, achieving better results than those obtained with other methods.
Revista Española de Cardiología (English Edition), 2009
The aim of this study was to describe the echocardiographic characteristics of patients with an a... more The aim of this study was to describe the echocardiographic characteristics of patients with an atrioventricular criss-cross who underwent segmental cardiac morphological analysis. The study involved five patients with a criss-cross heart (0.6% of the studies). The patients' average age was 6 years and 3 months. All patients presented with situs solitus. Three had a discordant atrioventricular connection and two had a concordant connection. In addition, four patients had a ventriculoarterial connection with a double-outlet right ventricle while one had a concordant connection. Two patients had superior-inferior ventricles. Other associated lesions included ventricular septal defect in all patients, pulmonary stenosis, persistent ductus arteriosus and atrial septal defect in three, pulmonary perforation in one, and a hypoplastic aortic arch in one. In these patients, segmental analysis can be carried out satisfactorily using transthoracic echocardiography.
Revista Española de Cardiología, 2009
The aim of this study was to describe the echocardiographic characteristics of patients with an a... more The aim of this study was to describe the echocardiographic characteristics of patients with an atrioventricular criss-cross who underwent segmental cardiac morphological analysis. The study involved five patients with a criss-cross heart (0.6% of the studies). The patients’ average age was 6 years and 3 months. All patients presented with situs solitus. Three had a discordant atrioventricular connection and two had a concordant connection. In addition, four patients had a ventriculoarterial connection with a double-outlet right ventricle while one had a concordant connection. Two patients had superior-inferior ventricles. Other associated lesions included ventricular septal defect in all patients, pulmonary stenosis, persistent ductus arteriosus and atrial septal defect in three, pulmonary perforation in one, and a hypoplastic aortic arch in one. In these patients, segmental analysis can be carried out satisfactorily using transthoracic echocardiography.
Scientia et technica, 2017
En el presente trabajo se propone controlar la concentración de oxigeno disuelto (DO) en el bio... more En el presente trabajo se propone controlar la concentración de oxigeno disuelto (DO) en el bioreactor de la planta piloto de aguas residuales de la Universidad de Ibagué (PTAR), La estrategia de control que se pretende utilizar es el control predictivo basado en modelos (MPC). Para lograrlo primero se realiza la estimación de la función de transferencia de oxigeno (KLa), luego se determina el modelo y la técnica de linealizacion y finalmente se diseña el controlador. Los resultados son simulados en Matlab y ejecutados en el sistema de control y supervisión de la planta (Labview).
TECCIENCIA, 2019
This article proposes a decision-making algorithm based on the "fuzzy logic" as an optimization t... more This article proposes a decision-making algorithm based on the "fuzzy logic" as an optimization technique, which allows to find a good solution to the problem of determining the priority (sequencing) of service or manufacture of jobs in the programming of intermittent production systems, Job Shop. The combinatorial nature and complexity of the problem motivates the exploration of other alternatives solutions to the traditionally used. Initially, the fuzzy logic controller structure (number of input variables, rules and output) is determined in accordance with the objective functions to be optimized. Triangular membership functions are selected for the batch size, the delivery date, the processing time, the number of tools required in each operation, and the priority of the processing the jobs. The fuzzy rules base is defined, and the controller model is formulated (fuzzification, evaluation and defuzzification). The algorithm is developed in Matlab's ®Simulink ®Fuzzy logic toolbox, achieving better results than those obtained with other methods.
Revista Española de Cardiología (English Edition), 2009
The aim of this study was to describe the echocardiographic characteristics of patients with an a... more The aim of this study was to describe the echocardiographic characteristics of patients with an atrioventricular criss-cross who underwent segmental cardiac morphological analysis. The study involved five patients with a criss-cross heart (0.6% of the studies). The patients' average age was 6 years and 3 months. All patients presented with situs solitus. Three had a discordant atrioventricular connection and two had a concordant connection. In addition, four patients had a ventriculoarterial connection with a double-outlet right ventricle while one had a concordant connection. Two patients had superior-inferior ventricles. Other associated lesions included ventricular septal defect in all patients, pulmonary stenosis, persistent ductus arteriosus and atrial septal defect in three, pulmonary perforation in one, and a hypoplastic aortic arch in one. In these patients, segmental analysis can be carried out satisfactorily using transthoracic echocardiography.
Revista Española de Cardiología, 2009
The aim of this study was to describe the echocardiographic characteristics of patients with an a... more The aim of this study was to describe the echocardiographic characteristics of patients with an atrioventricular criss-cross who underwent segmental cardiac morphological analysis. The study involved five patients with a criss-cross heart (0.6% of the studies). The patients’ average age was 6 years and 3 months. All patients presented with situs solitus. Three had a discordant atrioventricular connection and two had a concordant connection. In addition, four patients had a ventriculoarterial connection with a double-outlet right ventricle while one had a concordant connection. Two patients had superior-inferior ventricles. Other associated lesions included ventricular septal defect in all patients, pulmonary stenosis, persistent ductus arteriosus and atrial septal defect in three, pulmonary perforation in one, and a hypoplastic aortic arch in one. In these patients, segmental analysis can be carried out satisfactorily using transthoracic echocardiography.